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ENVIROTROL INC

Overview
  • Total Patents
    13
About

ENVIROTROL INC has a total of 13 patent applications. Its first patent ever was published in 1971. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets chemical engineering, environmental technology and materials and metallurgy are BEIJING YIJING ENV PROT EQUIPMENT TECH CO LTD, UNIVERZA V MARIBORU FAKULTETA ZA STROJNIŠTVO and PERMUTIT A G.

Patent filings in countries

World map showing ENVIROTROL INCs patent filings in countries
# Country Total Patents
#1 United States 6
#2 WIPO (World Intellectual Property Organization) 4
#3 Australia 1
#4 Canada 1
#5 Mexico 1

Patent filings per year

Chart showing ENVIROTROL INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Havelka J Michael 8
#2 Roodman Robert G 7
#3 Smiley Jack 4
#4 Scherrer Robert 4
#5 Traviss Donald P 2
#6 Beatty Al 1
#7 Tobias G 1
#8 Knocke James Joseph 1
#9 Sharp Thomas R 1

Latest patents

Publication Filing date Title
US2007232731A1 Amorphous silica coating for heat reflectivity and heat resistance
WO2005079977A1 Method and system for providing certified reactivated carbon
US2004048733A1 Method and system for providing certified reactivated carbon
WO03084633A1 Method and apparatus for removing chlorine from water and methods for manufacturing the same
US2002148784A1 pH stable activated carbon
US6425941B1 Oxidation resistant granular activated carbon
US3823010A Elimination of h2s from slag quenching